Process for the sulfation of partial esters of aliphatic polyhyd

Details Process for the sulfation of partial esters of aliphatic polyhyd Process for the sulfation of partial esters of aliphatic polyhyd

1990-01-23

1990-08-14

Garvin, Patrick P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260403, C07C30300, C07C30306

Patent

active

049485350

ABSTRACT:
A process for the sulfation of primary free OH groups of partial esters of aliphatic polyhydric alcohols with SO.sub.3 is described. As solvent, use is made of at least one compound which has a boiling point of 40.degree. to 200.degree. C. at a pressure of 98 kPa, is liquid under the chosen reaction conditions and, in addition to at least one trivalent nitrogen atom, which is linked exclusively to carbon atoms, contains only carbon, hydrogen and optionally ether oxygen atoms. The sulfated partial esters and also their alkali of alkaline earth salts are obtained with a good color and good yield and without the formation of large quantities of salts which pollute the waste water. They may be used, for example, for detergent base materials, synthetic soaps and flotation agents.

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Biswas, A. K. et al, J. Amer. Oil Chem. Soc. 37, 171-172 (1960).

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